US Army Technical Manual TM1-420 - Lathes
War Department Air Corps technical manual from November 29, 1940, providing comprehensive guidance on lathe operation and metalworking practices. This workshop manual covers nomenclature and maintenance of lathe equipment, selection of cutting tools and optimal cutting speeds, use of precision measuring instruments, methods for holding and securing work, and detailed procedures for general lathe operations. The manual includes dedicated sections on drilling and boring techniques, thread cutting and threading operations, classification of fits and tolerances, and calculations for gear blank preparation. A valuable reference for machinists, technicians, and anyone working with engine lathes and precision metal fabrication.
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Document Details
- Format
- Pages
- 37
- Size
- 4.6 MB
- Category
- Machining